|A sailor from HBO's miniseries
The tarpaulin hats we tend to think of are made of straw and coated in a weather proof seal of black tar, pitch, or paint. Certainly these hats existed in the nineteenth century. I was lucky enough to hold Richard Henry Dana's straw tarpaulin hat that he wore during the events related in the 1830's memoir Two Years Before the Mast, now in the collection of Mystic Seaport.
|Richard Henry Dana's straw tarpaulin hat, Mystic Seaport Collection
Straw hats like Dana's are uncommon in eighteenth century artistic depictions and not often mentioned in period sources. I only know of one visual representation, and that at the very tail end of my era of interest. Hats made entirely out of canvas, in both the eighteenth and nineteenth century, are unheard of.
The earliest reference I have yet found to canvas and tar in the construction of a hat is from The New York Mercury in 1753, where an English servant, wearing clothes that are at least reminiscent of slop clothes, ran away with 'an old felt hat, with the edge bound in tarr'd canvas.'
|The New York Mercury, October 8, 1753, page 4
The practice of sewing a cover onto a round hat was not strictly restricted to sailors. An Irish servant in London wore a 'round Hat covered in Oil-skin.'
|The Public Advertiser, October 18, 1765, page 3.
|Figure 4, photo by B. Galus in General Carleton Shipwreck 1785, page 178
Conservation on the hat was inelegant, and modern elements are visible in this photograph
A runaway advertisement placed in the Federal Gazette and Philadelphia Evening Post in 1789 for a 'sailor boy' mentioned that he was wearing 'a hat cover'd with canvass.'
|Federal Gazette and Philadelphia Evening Post, June 24, 1789 page 3
Earlier that same year, an advertisement was placed in the Pennsylvania Gazette for a Spanish sailor who had escaped jail, and was said to be wearing 'a round sailor's hat, covered with black oil cloth.' The rest of his clothing is highly unusual, and so it may well be that this hat is because of his Spanish maritime tradition, not British.
|The Pennsylvania Gazette, January 14, 1789, page 3
What was the purpose of the canvas hat? The obvious assumption is for weatherproofing. Canvas sewn onto felt could prevent the felt from absorbing moisture. This would be doubly true of a hat covered with oil cloth. It is often asserted that this is where the name Jack Tar springs from.
Tar is ubiquitous on sailing ships and undeniably sailors were referred to as tars. It even forms the name of this blog. But tar need not come from hats alone. There are numerous runaway advertisements that refer to sailors with clothing covered in tar. Was this intentionally applied for waterproofing, or was it just the result of working on a ship?
|Adam Hodges-LeClaire's tar stained petticoat trousers
after L'Hermione's 2015 Atlantic voyage
Visual representations of sailor clothing (the focus of this blog) are too vague and indeterminate to draw any conclusions on the material of hats, but the documentary record for canvas hats is sparse, and silent on intentionally tarring hats.
Though the General Carleton hat was covered in tar, the ship's cargo included tar, which came apart after she sank and coated the artifacts that survive. Matthew Brenckle later told me "It is difficult to say if that was placed there before the wreck or not. I tend to think that that reason the runaway descriptions mentioned hats covered in canvas is that the canvas was left white, and was therefore distinctive." He also had this to say:
In reviewing my notes and looking at the photos I took in Poland, it is clear that the canvas was applied to the hat in an attempt to prolong the life of what was a really beat up piece of clothing. The brim and crown had significant sections missing- the period repairs or attempts to stabilize it are clearly visible on the underside of the brim.In short, tarpaulin hats, as such, have virtually no documentary evidence. Hats covered in canvas, likely to prolong the life of those hats, have some support, but are still rather rare. Felt hats and various kinds of caps are overwhelming supported by documentary evidence, and clearly formed the vast majority of sailors' head wear.
 The 1911 transcription of The Logs of the Serapis - Alliance - Ariel Under the Command of John Paul Jones, 1779-1780 states that John Atwood joined the crew of the Bon Homme Richard on April 6, 1779 at Paimbœuf in western France, and deserted on July 6 in L'Orient. His freedom wasn't long lived. A calendar of John Paul Jones manuscripts in the Library of Congress, published in 1903, states that he was court-martialed on July 29, 1779 and found guilty of desertion.